LUBRICATION, MAINTENAN
CE
AND TUNE-UP
59
--
~
'. .,
..
- - ,
9.
Use a
17
mm
wrench (
Figure
96)
on
the
ailernalOr rot
or
bolt. Rotate the engine clockwise,
as viewed from the left-hand side. until the engine
is at top dead center
(
TDe)
on the compression
stroke. A
li
gn
the groove on the end of the aiternalOr
rotor with the notch
in
th
e alternator cover (I-ig-
ure
97).
10
. With the groove aligned with the notch. jiggle
both rocker arms and make sure
both
have
free
pl
ay.
If one rocker a
rm
is sti
ll
under
ten
sion. rotate
the eng
in
e
an
additional
180
0
until both rocker
a
rm
s
have
free pl
ay
.
11
. Again ch
ec
k that the groove on the end
of
the
alternator rotor is al igned
wi
th the notch
in
the
alternator cover.
NOTE
The
fo{/owing
Slf.'pS
are showlI w;lh
fhe
engine remm'ed from
Ihe
frame for
clarity.
II is not necessary
to
remol'l!
Ihe
engine
to
adjusl fhe
m/l
'
f.'S
.
1
2.
With the engine in this position, check the
clearance
of
the intake and exhaust
va
l
ves.
1
3.
Check
th
e clearance
by
inserting a
fl
at feeler
gau
ge
between the adjusting screw and each valve
s
tem
(Figure
107
). When the clearance
is
correct,
there will
be
a slig
ht
drag on the feeler gauge when
it
is inserted and withdrawn.
CAUTION
Adjust
bO
lh
the righi- and left-hand
m/l
'e clearance as close to each other
as possible.
14
. To correct the clearance, perform
th
e
fol lowing:
a. Loosen the adjuster locknut (Figure
108
) on
one
of
the exhaust valve adjusters.
b.
Screw the adjuster in or out so there is a slight
resistance
fell on the feeler gauge (Figure
109
),
c.
Hold the adjuster to prevent
it
from turning
further and tighten
th
e locknut
to
the torque
specification
li
sted
in
Table S.
d. Then,
re
check the clearan
ce
to make sure the
adju
ster did
not
turn after the correct clearance
was achieved.
Re
adjust if necessary.
e.
Repeat f
or
the adj ust
er
of
the o
th
er
valve
controlled
by
the same rocker a
rm
.
f.
Repeat this step for the other exhaust valve.
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